COVER GP-CAMSHAFT 3934975 - Caterpillar

can be installed in the original orientation.
Remove bolts (7).
Remove plate (8).
Remove the assembly of idler gear (4).
Remove hub (9) from the recess in the front housing. Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 364-9107 Fuel Injection Pump Timing Pin 1
B 230-6284 Timing Pin (Camshaft) 1
C 136-4632 Timing Pin (Crankshaft) 1
268-1966 Adapter 1
D 298-5564 T40 Torx Socket 1
E 7H-1942 Dial Indicator 1
- Magnetic Base and Stand 1
Illustration 6 g03652835
Typical example
Illustration 7 g01996475
Typical example
Ensure that Tooling (C) is installed in Hole (Y) in the cylinder block. Use Tooling (C) to lock the crankshaft in the correct Position. Refer to System Operation, Testing and Adjusting, "Finding Top Center Position for No.1 Piston" for the correct procedure.
Ensure that Tooling (B) is installed into Hole (X) in camshaft gear (3).
Use Tooling (A) to lock the fuel injection pump gear in the correct position. Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove" for the correct procedure.
Illustration 8 g01996477
Typical example
Illustration 9 g02196594
Typical example
Illustration 10 g01996576
Typical example
Lubricate hub (9) with clean engine oil. Install hub (9) into the recess in the front housing. Ensure that oil Hole (Z) is position as shown in the Illustration 9.
Install idler gear (4) onto hub (9). Ensure that the timing marks are toward the front of the idler gear.
Align the timing mark on idler gear (4) with the timing mark on camshaft gear (3), fuel injection pump gear (10), and crankshaft gear (11). Refer to the Illustration 10. Install the assembly of idler gear (4) to hub (9). Ensure that idler gear (4) is correctly installed into the gear for the auxiliary water pump.
Lubricate plate (8) with clean engine oil. Align the holes in plate (8) with the holes in hub (9). Install the plate in the original orientation. Note: Ensure that the identification mark TOP is upward.
Install bolts (7). Tighten the bolts